﻿APPENDIX. 10. LYGODIUM. 803 



herbaceous; surfaces naked. Fertile pinnae smaller, the leaflets entire, ovate. 

 Spikes short, oblong. 

 Batan Island. 



% 2. HYDROGLOSSUM. 



(12) Ij. Matthewi, Copel., Philipp. Journ., Ill, 36. 



Fronds high-scandent. Pinnae more than 50 c.M. long. Pinnulae stalked, 

 1 — 2 on each side below the terminal one, not or hardly articulate at the 

 base, the stalks I'/a — 2^2 c.M. long; terminal pinnulae deeply palmatifid with 

 + 6 spreading segments 20 — 30 c.M. long, 5 — 4 c.M. broad, the lateral ones 

 2 — 3-furcate with the segments + 20 c.M. long ; edges serrulate. Texture her- 

 baceous; surfaces naked, or the veins pubescent at the base on the under 

 side; veins anastomosing. — Fertile fronds unknown. 



Philippines. 



(13) li. Merrilli, Copeh, Philipp. Journ., II, 146, tab. IV. 



Near L. Matthewi, Copel., but the terminal pinnulae forked. Fertile fronds 

 with the spikes not very numerous, not close (conf. Copeland's drawing). 

 Mindoro. 



11. SCIIIZ^!lE.A., Smith. 



* (5) S. dicBiotoma, Sm. — Insert as a synonym: Acroslichum 

 dichotomum, L., (oldest name). 



* (4) S. digilata, Sw. — Insert as a synonym : Acroslichum digita- 

 tum, L., (oldest name). 



13. OlfL^^ZIOPSIS, Chf^stensen, 



Indusium sausage-shaped, quite enclosing the sorus when young, ruptur- 

 ing irregularly when the spores mature, apparently fastened all round the 

 receptacle, i.e., the indusium is fixed by its very broad base to the posterior 

 side of the vein, with the free edge strongly involute and closely adpressed to 

 the anterior side of the vein. — Rac, Ueber die Famgattung Allanlodia, 

 Wall., Bull. Ac. Crac, i905, 346—349; Bot. Centralbl., 4906, I, 261. 



